S
M
T
W
T
F
S
26
87°
76°
27
87°
76°
28
88°
75°
29
86°
76°
30
87°
76°
31
87°
75°
1
88°
76°
2
87°
76°
3
88°
75°
4
88°
76°
5
87°
76°
6
87°
75°
7
88°
76°
8
89°
76°
9
90°
77°
10
91°
75°
11
92°
74°
12
91°
75°
13
92°
76°
14
90°
75°
15
88°
74°
16
89°
75°
17
91°
75°
18
90°
74°
19
90°
71°
20
88°
71°
21
87°
72°
22
87°
72°
23
88°
73°
24
87°
72°
25
87°
72°
26
88°
73°
27
88°
71°
28
89°
71°
29
89°
72°
30
91°
73°
31
89°
73°
1
88°
71°
2
87°
73°
3
89°
72°
4
87°
74°
5
87°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 86° to 92°, with overnight lows between 71° and 77°. The average high for August is 88° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
